#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use core::ops::Deref;
struct SomeType;
impl Deref for SomeType {
    type Target = [u8];
    fn deref(&self) -> &[u8] {
        &[]
    }
}
impl<T> AsRef<T> for SomeType
where
    T: ?Sized,
    <SomeType as Deref>::Target: AsRef<T>,
{
    fn as_ref(&self) -> &T {
        self.deref().as_ref()
    }
}
fn main() {}